Alert: High Water 2019

Water levels are rising along the St. Lawrence River. In order to protect people and docks, some docks have been closed to prevent damage and docks with less than 12 inches of freeboard are also closed. The Mallorytown Landing boat ramp is open

Temporary Closures

Temporary closures are in effect at the following locations due to high water levels. Docks will be opened as temporary ramps are put in place and/or water levels permit.

Cedar: Northeast floating dock closed. 

Aubrey: Small north floating dock closed. No shore access from south bay floating dock. Island Attendants will collect fees. 

Beau Rivage: Small camping dock open, but all other small floating docks closed.

Thwartway: Island closed. Mooring buoys remain open. Island Attendants will collect fees.

Camelot: North mooring buoys closed. 

Adelaide: Island closed. Mooring cans remain open. Island Attendants will collect fees.

Stovin: Island closed. 

Facility Status at Thousand Islands National Park

Like many parts of the St. Lawrence River and Lake Ontario, significant flooding impacted the park in 2017 and many of the park’s docks were damaged beyond repair. The park is undertaking a multi-year process of building new docks so that boaters can continue to discover and enjoy the natural beauty of the islands.

Significant recapitalization efforts will continue throughout 2019, with construction at McDonald, Camelot and Mulcaster Islands. This work is influenced by factors such as weather conditions, in water work restrictions to protect spawning fish and nesting turtles, and availability of contractors.

We encourage boaters to plan their visit by reviewing updates to the status of docks at our maps page.


Visitors can also follow the park on Facebook, or on Twitter @TInationalpark.

For more information, please contact Thousand Islands National Park at 613-923-5261, or by email at ont-ti@pc.gc.ca.